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Journal of Pharmacognosy and Phytochemistry

Journal of Pharmacognosy and Phytochemistry

Vol. 8, Special Issue 1 (2019)

Effect of nitrogen levels, cultural practices and their interactions on growth and yield attributes and yield of potato (<em>Solanum tuberosum</em> L.)

Author(s):

Roop Singh Dangi, SP Singh, Dharmendra Gaur, JP Dixit, SK Sharma, Neelam Singh, Neha Singh Kirar and Rahul Patidar

Abstract:
A field experiment, entitled “Effect of nitrogen levels, cultural practices and their interactions on growth and yield attributes and yield of potato (<em>Solanum tuberosum</em> L.)” was conducted at the Research Farm of ICAR- Central Potato Research Institute-RS, Gwalior (M.P.) during <em>Rabi </em>season of 2016-17 on silty clay loam soil having 0.29% organic carbon, 160.25 kg available N, 24.35 kg available P, 270.01 kg available K/ha and pH 6.3. The experiment was laid out in split plot design with 8 treatment combinations replicated three times. The treatment combination consists of 2 cultural operations and 4 nitrogen levels. Heat tolerant potato variety “Kufri Surya” was planted using seed rate of 3000 kg/ha. Planting was done at an inter row spacing of 60 cm apart and intra row spacing was kept at 20 cm apart. Basal dose was applied as per treatment through Urea, SSP and MOP in each treatment. The crop was planted on 24<sup>th</sup> October 2016 and harvested on 4<sup>th</sup> February 2017. The results revealed that application of 225 kg nitrogen/ha recorded significantly higher haulm fresh weight (377 g/5 plant), haulm dry weight (34.33 g/5 plant), number of green tubers {(&lt; 25 g- 34/plot and total-103/plot)}, number of total tubers (&lt; 25g - 91.5/plot, 50-75 g-51.8/plot). Similarly normal tuber yield (&gt;75 g-11.11 kg/plot), green tuber yield-7.07 kg/plot as well as total tuber yield (&gt;75 g-16.03 kg/plot) in addition to fresh tuber, available P in soil. However, chlorophyll content, AGR (g/day), RGR (g/g/day) were recorded non-significant in all treatments. On the other hand interaction of N<sub>2</sub>H<sub>1</sub>, N<sub>0</sub>H<sub>0</sub>, N<sub>1</sub>H<sub>0 </sub>and N<sub>1</sub>H<sub>1</sub> recorded significantly higher value under available nutrient P (60.08 kg/ha), available nutrient N (178 kg/ha) and K (386.77 kg/ha), tuber dry production at 30 DAS (16.69 g) and haulm fresh weight (1183.33g/ 5 plant) at harvest, respectively. Hence, under non- hoeing condition application of 225 kg N/ha and under hoeing situation 150kg N/ha are desirable doses.

Pages: 113-117  |  1219 Views  211 Downloads

How to cite this article:
Roop Singh Dangi, SP Singh, Dharmendra Gaur, JP Dixit, SK Sharma, Neelam Singh, Neha Singh Kirar and Rahul Patidar. Effect of nitrogen levels, cultural practices and their interactions on growth and yield attributes and yield of potato (<em>Solanum tuberosum</em> L.). J Pharmacogn Phytochem 2019;8(1S):113-117.

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